POLYESTER RESIN, ACTIVE ENERGY RAY-CURABLE INK COMPOSITION CONTAINING SAME, AND METHOD FOR PRODUCING SAME

    公开(公告)号:US20240301223A1

    公开(公告)日:2024-09-12

    申请号:US18283422

    申请日:2022-01-27

    CPC classification number: C09D11/105 C08G63/21 C09D11/101

    Abstract: To provide a resin for ink compositions that is usable in the preparation of active energy ray-curable ink compositions and that can increase a proportion of biomass-derived ingredients.
    A polyester resin that is a condensation polymer of an acid ingredient including a fatty acid containing an epoxy group and a polybasic acid, and a polyhydric alcohol is employed, wherein the fatty acid has a peroxide value of 1 meq/kg or more in terms of triglyceride. Such a resin is prepared by a process for producing the polyester resin through heating a mixture containing an epoxidized oil or fat, a polybasic acid, and a polyhydric alcohol to subject to a transesterification reaction and a polycondensation reaction, wherein the epoxidized oil or fat has a peroxide value of 1 meq/kg or more.

    ACTINIC-RAY-CURABLE INK COMPOSITION AND PRODUCTION METHOD THEREFOR

    公开(公告)号:US20240158652A1

    公开(公告)日:2024-05-16

    申请号:US18282151

    申请日:2022-01-15

    CPC classification number: C09D11/101 C09D11/102

    Abstract: To provide an actinic-ray-curable ink composition that has high flowability and can thus achieve superior gloss on printed matter.
    The actinic-ray-curable ink composition which contains a compound having an ethylenically unsaturated bond and epoxidized oil or fat is employed, wherein the epoxidized oil or fat has a peroxide value of 1 meq/kg or more. Such epoxidized oil or fat can be prepared through epoxidation of, for example, waste edible oil after being used in cooking fried foods by a known means. Accordingly, the present invention can achieve not only the object described above but also the effective utilization of waste.

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